Haier USYM18UCDSA - Mid-Static Ducted Technical Overview; Components

MID-STATIC DUCTED TECHNICAL OVERVIEW
G-1
ENGLISH
MID-STATIC DUCTED TECHNICAL OVERVIEW
Table of Contents
Components ......................................................................................................................................................................... G-2
Component Overview ......................................................................................................................................................... G-2
Indoor Unit Circuit Board .....................................................................................................................................................G-4
Fresh Air Function ................................................................................................................................................................ G-5
Ductwork/Grilles .................................................................................................................................................................. G-6
Testing .................................................................................................................................................................................. G-7
Test Condensate Pump and Associated Float Switch .......................................................................................................G-7
Testing Temperature Sensors .............................................................................................................................................G-7
Testing Communication Circuit ..........................................................................................................................................G-8
Indoor Fan Motor Voltage Check ........................................................................................................................................ G-8
Static Pressure Charts .........................................................................................................................................................G-9
Board Replacement ...........................................................................................................................................................G-10
Removing the Condensate Pump .....................................................................................................................................G-10
Removing Fan Motor .........................................................................................................................................................G-10
Replacing WiFi Module .......................................................................................................................................................G-11
Wiring Diagram ................................................................................................................................................................... G-12
DIP Switch Settings ............................................................................................................................................................G-13
Error Codes .........................................................................................................................................................................G-14
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